Car-truck.



W. S. ADAMS. CAR TRUCK.

APPLICATION FILED MAR. 11, 1914- Ll 7filfi. Patented Feb.9, 1915 3 SHEET$-SHEBT 1,

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W. S. ADAMS.

GAR TRUCK.

APPLICATION FILED MAR. 11, 1914.

Patented Feb. 9, 1915.

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I .5 7 33M 3. Q 14,013 b 792 erases Parisian WALTER S. ADAMS, 0F PHILADELPHIA, PENNSYLVANIA, ASSIGNOE TO THE J. BRILI (10., OF PHILADELPHIA, PENNSYLV&NIA, A CQRPORAIION OF PENNSYLVANIA.

GAE-TRUCK.

w at bixtysecond street and Woodland avenue,

in said city. have invented certain new and userul Improvements in Car-Trucks, of

'WlllCl] the following is a specification My invention has for its obiect to generally improve and simplit'v the construction of car theirs. and especially those of the li'l'aster (ar Builders type.

Mrimprorement consists of supporting the holster near its ends on nests of coil springs resting on the usual elliptic springs, which rest on the spring plank in the usual manner. the spring plank being suspended by links from the truck transoms in the conventional manner. the combination of coil and elliptic springs permitting of more vertical flexibility in" supporting the load and the action of two kinds of springs tendinc to neutralize the vibrations of each other.

The present invention also resides in cer tain novel features of construction and combinations oi elements. which will be herein-- a llor deserilwd and Further pointed out in the clain'is appended hereto. a

A structure embod ing my improvements is set forth in the 'iollowing description and shown in the accompanying drawing. iorminn part of this specification. in Which- Figure 1 is a plan view of a portion of a truck provided with my improvement.

is a sectional View of the same. the section being taken on the line2- -2 of Fig. 1, looking" in the direction of the arrows. Fig. 3 is a perspective View of one end of a spring lank. Fig. 4 is a side elevation oi the structure shown in Fig. 1. Fig. 5 is an end ele ation oi this structure. the top chord lur ng)" shown in section. Fig. 6 is a seclional iew. taken on the line (ii of Fig. l o cino in. llm direction or the a rows. l lil's. 1.? and 9 show a aprinlr seat. F as- 8 and 9 being taken as iIulieah-(l on Fig. 7'.

Similar reference characters indicate cor-- rcs iionding pa rts lihrougl'iout the several views. I As my invention may be applied to many li'indslofitruchts,J. will nht attempt to show any on in particular, but disclose a porspectflcetion of Letters Patent.

Fig.

li atented Feb. fl, M915.

Application filed March 11, 1914. Serial No. 823,905.

tion of a truck which may be taken as typical of a number and I show no parts that are irrelei 'ant to my improvements. 1 do show portions of a frame 1 comprising top chords 2. transoms S. gusset plates 4-, bolts 5 and reinforces 6 all of which may be of the conventional kind.

The bolster 7 is mountedbetween the transoms 3 and gusset plates 2 by means of suit able bearing blocks 8 which carry suitable spindles 9 and other parts described below.

These bearing blocks are fixed in place on' the gusset plates 4 by the bolts 10. These spindles 9 are made circular in cross section at their ends. so as to fit said bearings 8 and turn freelythercin and they are preferably made of some other than circular form where they support the hangers 11. At the lower ends of these hangers are carried suitable spindles 12. which connect their lower ends, one spindle connecting two hangers. Each spindle 12 is made of circular or other cross section at its ends, so as to it the corresponding" parts of the hangers 11 and not turn therein and. between the hangers 11, each spindle 12 is preferably made circular in cross section. so to receive and support a. suitable hearing in a bracket 13, which is fixed by means of bolts 14 to a spring scat 'lf'rand in angle bars .16 by rivets 17; the parts 13. H. 15. '16 and 17 forming a. spring planll'. The seats 1!) hold the bands 18 of suitable leaf s 'irings '19. which in the cm hodimcnt of my invention shown in the drawings. are elliptic springs. As many of these elliptic springs are used as desired, although three are shown at each end of each spring plank. The upper bands 18 of each elliptic spring carry a suitable spring seat 20, on which are mounted suitable coiled springs 21, which enter a correspond ing cup 22 in the bolster 'i', 'Which cup is preferably so extended as to nearly conceal said springs 91. in the embodiment of my invention 7 herein shown, three elliptic springs iii are surmounted by a. seat 520,

which carries two sets oi coiled springs. each ft being.r mposed of two laincentric springs. if desired. lhe detaiis of construe tion may be varied subst tutii'ip' more or loss coiled springs on the elliptic springs.

. W hen a truck is provided with my my provement. it apparent from What has been said that the bolster '7 is carried true and without undue jar, or vibration by means of a combined action of the leaf and coiled springs, by which it is supported from the spring plank, but and at'the same time, the bolster is not carried any higher from the spring plank than is customary in such structures.

The hangers 11 may be spaced apart in any suitable manner, so as to maintain their parallel relation. In the embodiment herein shown, they are separated at their upper ends by means of a suitable plate 23, held to its spindle 9 by means of suitable cap screws 24, and at their lower ends, they are preferably held againstthe bearing 13 by means of suitable cotters 25.

While I have shown and described one embodiment of my invention, it is obvious that( it is not restricted thereto, but is broad enough to cover all structures that come within the scope of the annexed claims.

, Haring thus described my invention, What I claim is:

1. In a truck of the class described. a truck frame, hangers supported by said frame, transversely vdisposed leaf springs supported by said hangers, coiled springs supported by said leaf springs, and a bolster carried by said coiled springs.

2. In a"'truck of the class described, a

truck frame, having hangers and means for supporting the same, a spring plank carried by said hangers, leaf springs carried by said spring plank, coiled springs carried by said leaf springs, and a bolster carried by said coiled springs.

3. In a truck of the class described, a

frame, hearings on said frame, spindles in said bearings, hangers carried by said spindles, a spring plank and means connecting said spring plank and hangers, leaf springs on said spring plank, coiled springs carried by said leaf springs, and a bolster carried by said coiled springs.

4. In a truck of the class described, a

frame, hangers carried by said frame 'and' means for supporting said hangers, a spring plank carried by said hangers and means connecting, said spring plank and hangegs, elliptic springs carried by said spring plank,

coiled springs mounted on said leaf springs,

WVM. R. MARTIN, II. F. Mcliuur. 

